CN216259127U

CN216259127U - Spray drying device

Info

Publication number: CN216259127U
Application number: CN202122621012.4U
Authority: CN
Inventors: 杨从能; 徐明生
Original assignee: Suqian Hongguang Chemical Industry Co ltd
Current assignee: Suqian Hongguang Chemical Industry Co ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-04-12
Anticipated expiration: 2031-10-28

Abstract

The utility model relates to the technical field of drying devices, in particular to a spray drying device, which comprises a shell, wherein the bottom end of the shell is fixedly connected with a plurality of groups of supporting columns, the top end of the shell is provided with a liquid inlet pipe, the bottom end of the liquid inlet pipe penetrates through the inner wall of the shell and is fixedly connected with a centrifugal atomizer, a drying mechanism is arranged inside the shell and below the centrifugal atomizer, the outer surface of the shell is provided with a hot air inlet pipe, and one end of the hot air inlet pipe penetrates through the inner wall of the shell and extends to the lower part of the drying mechanism; according to the utility model, the drying mechanism can be powered by hot air, so that the drying mechanism forms a barreled drying heating area around the centrifugal atomizer, and the vaporous reaction liquid is dried after being contacted with the hot air, thus the hot air is sprayed more uniformly, the particles are dried more uniformly, and the quality of the final finished product is improved.

Description

Spray drying device

Technical Field

The utility model relates to the technical field of drying devices, in particular to a spray drying device.

Background

The spray dryer is one of continuous normal pressure dryers; spraying the liquid material into mist by using special equipment, and enabling the liquid material to be in contact with hot air to be dried; for drying some heat sensitive liquids, suspensions and viscous liquids, such as milk, eggs, tannins and pharmaceuticals; also useful for drying fuels, intermediates, soap powders, inorganic salts, and the like.

In the process of spray drying, the particles with small particle sizes can be generated due to uneven spraying, and the existing spray drying device directly discharges the particles with small particle sizes into the next procedure, so that the quality of the final finished product is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a spray drying device, which mainly solves the problem that the quality of a final finished product is influenced because small-particle-size particles are generated due to uneven spraying in the spray drying process.

In order to achieve the purpose, the utility model provides the following technical scheme:

the spray drying device comprises a shell, supporting columns, a liquid inlet pipe, a centrifugal atomizer, a hot air inlet pipe and a drying mechanism, wherein the bottom end of the shell is fixedly connected with a plurality of groups of supporting columns, the top end of the shell is provided with the liquid inlet pipe, the bottom end of the liquid inlet pipe penetrates through the inner wall of the shell and is fixedly connected with the centrifugal atomizer, the drying mechanism is arranged inside the shell and below the centrifugal atomizer, the hot air inlet pipe is arranged on the outer surface of the shell, and one end of the hot air inlet pipe penetrates through the inner wall of the shell and extends to the lower part of the drying mechanism;

the drying mechanism comprises a fixed box, fan blades, a rotating shaft, a flow guide pipe, a flow distribution plate, an L-shaped pipe and a connecting pipe, the inner wall of the shell is fixedly connected with a fixed box through a fixed frame, the bottom end of the fixed box is fixedly connected with a hot air inlet pipe, the inside of the fixed box is provided with fan blades, the inner walls of the fan blades are fixedly connected with a rotating shaft, the top end of the rotating shaft is fixedly connected with a guide pipe, a plurality of air inlets are arranged on the outer surface of the flow guide pipe and positioned in the fixed box, the other end of the flow guide pipe penetrates through the upper surface of the fixed box and is fixedly connected with a flow distribution disc, the inner part of the flow distribution disc is of a hollow structure, a plurality of groups of L-shaped pipes are evenly and annularly arranged on the outer surface of the flow distribution disc, a connecting plate is fixedly connected to the outer surfaces of the adjacent two groups of L-shaped pipes, and a plurality of groups of air blowing holes are formed in one side, close to the centrifugal atomizer, of the outer surface of each L-shaped pipe.

Preferably, a bearing groove is formed in one side, close to the flow guide pipe, of the inner wall of the fixed box, and the inner wall of the bearing groove is rotatably connected with the outer surface of the flow guide pipe through a bearing.

Preferably, a groove is formed in the inner wall of the fixed box and in one side close to the rotating shaft, a sealing ring is arranged in the groove, and the inner wall of the sealing ring is rotatably connected with the outer surface of the flow guide pipe.

Preferably, the wind direction of the fan blade is from bottom to top.

Preferably, the air blowing holes are obliquely arranged downwards at an angle of 15-30 degrees.

Preferably, the top end of the shell is provided with an exhaust port.

Preferably, the bottom end of the shell is provided with a discharge hole.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, power can be provided for the drying mechanism through hot air, so that the flow distribution disc drives the plurality of groups of L-shaped pipes to rotate around the centrifugal atomizer, a barreled drying heating area is formed, then the centrifugal atomizer sprays reaction liquid in a vaporous form in the drying heating area to react with the hot air, and the vaporous reaction liquid is dried after being contacted with the hot air, so that the hot air is sprayed more uniformly, particles are dried more uniformly, and the quality of a final finished product is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of the structure of a spray-drying apparatus according to the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1 according to the present invention;

FIG. 3 is a top view of the drying mechanism of FIG. 1 in accordance with the present invention;

fig. 4 is an enlarged schematic view of the structure at B of fig. 2 according to the present invention.

In the figure: the device comprises a shell 1, a support column 2, a liquid inlet pipe 3, a centrifugal atomizer 4, a hot air inlet pipe 5, a drying mechanism 6, a fixed box 61, fan blades 62, a rotating shaft 63, a flow guide pipe 64, an air inlet 641, a flow distribution disc 65, an L-shaped pipe 66, an air blowing hole 661, a connecting plate 67, a bearing groove 7, a bearing 8, an air outlet 9, a material outlet 10 and a sealing ring 11.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution:

the spray drying device comprises a shell 1, supporting columns 2, a liquid inlet pipe 3, a centrifugal atomizer 4, a hot air inlet pipe 5 and a drying mechanism 6, wherein multiple groups of supporting columns 2 are fixedly connected to the bottom end of the shell 1, the liquid inlet pipe 3 is arranged at the top end of the shell 1, the bottom end of the liquid inlet pipe 3 penetrates through the inner wall of the shell 1 and is fixedly connected with the centrifugal atomizer 4, the drying mechanism 6 is arranged inside the shell 1 and below the centrifugal atomizer 4, the hot air inlet pipe 5 is arranged on the outer surface of the shell 1, and one end of the hot air inlet pipe 5 penetrates through the inner wall of the shell 1 and extends to the lower side of the drying mechanism 6;

the drying mechanism 6 comprises a fixed box 61, fan blades 62 and a rotating shaft 63, honeycomb duct 64, diverter plate 65, L type pipe 66 and connecting pipe, the inner wall of casing 1 passes through the fixed case 61 of mount fixedly connected with, the bottom and the 5 fixed connection of hot-blast intake pipe of fixed case 61, the inside of fixed case 61 is provided with flabellum 62, the inner wall fixedly connected with pivot 63 of flabellum 62, the top fixedly connected with honeycomb duct 64 of pivot 63, honeycomb duct 64's surface just is located and has seted up a plurality of air inlets 641 in the fixed case 61, the other end of honeycomb duct 64 runs through the last fixed surface fixedly connected with diverter plate 65 of fixed case 61, the inside of diverter plate 65 sets up to hollow structure, the surface annular of diverter plate 65 evenly is provided with multiunit L type pipe 66, the outer fixed surface fixedly connected with connecting plate 67 of adjacent two sets of L type pipe 66, multiunit blowhole 661 has been seted up to the surface of L type pipe 66 and the one side that is close to centrifugal atomizer 4.

When a user needs to use the device, firstly, hot air is discharged into the fixed box 61 through the hot air inlet pipe 5, then the hot air drives the fan blades 62 to rotate, so that the fan blades 62 drive the guide pipe 64 to rotate through the rotating shaft 63, then the guide pipe 64 drives the diverter tray 65 to rotate, so that the diverter tray 65 drives the plurality of groups of L-shaped pipes 66 to rotate around the centrifugal atomizer 4, thereby forming a barreled dry heating area, meanwhile, the hot air flows into the diverter tray 65 from the guide pipe 64 through the air inlet 641, then the hot air is sequentially diverted into the L-shaped pipes 66 through the diverter tray 65, after the hot air is blown into the shell 1 through the air blowing holes 661, reaction liquid is pumped into the centrifugal atomizer 4 through the liquid inlet pipe 3, and the reaction liquid is sprayed into the dry heating area in a foggy form through the centrifugal atomizer 4 to react with the hot air, then the foggy reaction liquid is dried after being contacted with hot air, so that the hot air is sprayed more uniformly, the particles are dried more uniformly, and the quality of final finished products is improved.

As an embodiment of the present invention, a bearing groove 7 is formed on the inner wall of the fixed box 61 and on the side close to the flow guide pipe 64, and the inner wall of the bearing groove 7 is rotatably connected to the outer surface of the flow guide pipe 64 through a bearing 8; the abrasion of the surface of the draft tube 64 can be reduced, and the service life is prolonged.

As an embodiment of the present invention, a groove is formed on the inner wall of the fixed box 61 and on the side close to the rotating shaft 63, a sealing ring 11 is arranged in the groove, and the inner wall of the sealing ring 11 is rotatably connected with the outer surface of the flow guide pipe 64; the sealing property of the fixing case 61 can be enhanced.

As an embodiment of the present invention, the wind direction of fan blades 62 is set from bottom to top; the fan blades 62 are prevented from causing a certain resistance to the air blown out from the hot air inlet pipe 5 during the rotation.

As an embodiment of the present invention, the blow holes 661 are disposed obliquely downward by 15 ° to 30 °; solid particles generated after the reaction liquid is dried can be blown into the bottom end of the housing 1, and the solid particles are reduced from falling on the surfaces of the diverter tray 65 and the fixed box 61.

As an embodiment of the present invention, the top end of the housing 1 is opened with an exhaust port 9; the waste gas generated after the reaction of the hot air and the reaction liquid is conveniently discharged out of the shell 1 for further treatment.

As an embodiment of the present invention, the bottom end of the housing 1 is provided with a discharge hole 10; the solid particles produced after drying can be discharged to the outside of the casing 1 for collection.

The working principle is as follows: when a user needs to use the device, firstly, hot air is discharged into the fixed box 61 through the hot air inlet pipe 5, then the hot air drives the fan blades 62 to rotate, so that the fan blades 62 drive the guide pipe 64 to rotate through the rotating shaft 63, then the guide pipe 64 drives the diverter tray 65 to rotate, so that the diverter tray 65 drives the plurality of groups of L-shaped pipes 66 to rotate around the centrifugal atomizer 4, thereby forming a barreled dry heating area, meanwhile, the hot air flows into the diverter tray 65 from the guide pipe 64 through the air inlet 641, then the hot air is sequentially diverted into the L-shaped pipes 66 through the diverter tray 65, after the hot air is blown into the shell 1 through the air blowing holes 661, reaction liquid is pumped into the centrifugal atomizer 4 through the liquid inlet pipe 3, and the reaction liquid is sprayed into the dry heating area in a foggy form through the centrifugal atomizer 4 to react with the hot air, then the vaporous reaction liquid is dried after being contacted with hot air, so that the hot air is sprayed more uniformly, the particles are dried more uniformly, and the quality of a final finished product is improved; then, the waste gas generated after the reaction of the hot air and the reaction liquid can be discharged out of the shell 1 through the exhaust port 9 for further treatment, and the solid particles generated after drying are discharged out of the shell 1 through the discharge port 10 for collection.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. Spray drying device, including casing (1), support column (2), feed liquor pipe (3), centrifugal atomizer (4), hot-blast intake pipe (5) and dry mechanism (6), its characterized in that: the bottom end of the shell (1) is fixedly connected with a plurality of groups of supporting columns (2), the top end of the shell (1) is provided with a liquid inlet pipe (3), the bottom end of the liquid inlet pipe (3) penetrates through the inner wall of the shell (1) and is fixedly connected with a centrifugal atomizer (4), a drying mechanism (6) is arranged inside the shell (1) and below the centrifugal atomizer (4), the outer surface of the shell (1) is provided with a hot air inlet pipe (5), and one end of the hot air inlet pipe (5) penetrates through the inner wall of the shell (1) and extends to the lower part of the drying mechanism (6);

the drying mechanism (6) comprises a fixed box (61), fan blades (62), a rotating shaft (63), a flow guide pipe (64), a flow distribution disc (65), an L-shaped pipe (66) and a connecting plate (67), wherein the inner wall of the shell (1) is fixedly connected with the fixed box (61) through a fixed frame, the bottom end of the fixed box (61) is fixedly connected with a hot air inlet pipe (5), the fan blades (62) are arranged inside the fixed box (61), the rotating shaft (63) is fixedly connected with the inner wall of the fan blades (62), the flow guide pipe (64) is fixedly connected with the top end of the rotating shaft (63), a plurality of air inlets (641) are formed in the outer surface of the flow guide pipe (64) and positioned in the fixed box (61), the other end of the flow guide pipe (64) penetrates through the upper surface of the fixed box (61) and is fixedly connected with the flow distribution disc (65), and the inside of the flow distribution disc (65) is arranged to be a hollow structure, the outer surface of the flow distribution disc (65) is annularly and uniformly provided with a plurality of groups of L-shaped pipes (66), the outer surfaces of the adjacent two groups of L-shaped pipes (66) are fixedly connected with connecting plates (67), and a plurality of groups of air blowing holes (661) are formed in one side, close to the centrifugal atomizer (4), of the outer surface of each L-shaped pipe (66).

2. A spray drying apparatus according to claim 1, wherein: bearing groove (7) have been seted up to the inner wall of fixed case (61) and the one side that is close to honeycomb duct (64), the inner wall of bearing groove (7) is passed through bearing (8) and is connected with the surface rotation of honeycomb duct (64).

3. A spray drying apparatus according to claim 1, wherein: a groove is formed in one side, close to the rotating shaft (63), of the inner wall of the fixing box (61), a sealing ring (11) is arranged in the groove, and the inner wall of the sealing ring (11) is rotatably connected with the outer surface of the flow guide pipe (64).

4. A spray drying apparatus according to claim 1, wherein: the wind direction of the fan blades (62) is set from bottom to top.

5. A spray drying apparatus according to claim 1, wherein: the air blowing holes (661) are arranged obliquely downwards at 15-30 degrees.

6. A spray drying apparatus according to claim 1, wherein: the top end of the shell (1) is provided with an exhaust port (9).

7. A spray drying apparatus according to claim 1, wherein: the bottom end of the shell (1) is provided with a discharge hole (10).